in the coins and use the miles to travel the globe almost free. but as first reportedbynpr, taxpayershaven't faired as well. is this program a waste of taxpayer money. >> the dollar coin program is a waste of taxpayer money. i think it's time to put a halt to this experiment. >> reporter: but ending it probably requires another law from congress. until then, the mint has five years and 20 presidents to go. lisa myers, nbc news, baltimore. >>> still ahead, the big showdown in washington over the debt limit. and the president's warned of potential catastrophe. so are lawmakers any closer to a deal? >>> and a sunday surprise for those dire predictions of carmageddon in california. i have copd. if you have it, you know how hard it can be to breathe and what that feels like. copd includes chronic bronchitis and emphysema. spiriva helps control my copd symptoms... by keeping my airways open a full 24 hours. plus, it reduces copd flare-ups. spiriva is the only once-daily inhaled copd maintenance treatment that does both. and it's steroid-free. spiriva does not replace fast-acting inhalers for sud